825972473 has 2 divisors, whose sum is σ = 825972474. Its totient is φ = 825972472.

The previous prime is 825972467. The next prime is 825972491. The reversal of 825972473 is 374279528.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 743761984 + 82210489 = 27272^2 + 9067^2 .

It is a cyclic number.

It is not a de Polignac number, because 825972473 - 2⁴ = 825972457 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (825972073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 412986236 + 412986237.

It is an arithmetic number, because the mean of its divisors is an integer number (412986237).

Almost surely, 2^825972473 is an apocalyptic number.

It is an amenable number.

825972473 is a deficient number, since it is larger than the sum of its proper divisors (1).

825972473 is an equidigital number, since it uses as much as digits as its factorization.

825972473 is an evil number, because the sum of its binary digits is even.

The product of its digits is 846720, while the sum is 47.

The square root of 825972473 is about 28739.7368289969. The cubic root of 825972473 is about 938.2570967055.

The spelling of 825972473 in words is "eight hundred twenty-five million, nine hundred seventy-two thousand, four hundred seventy-three".